Final answer:
National days reflect educational unity by serving as educational tools that reinforce a shared national narrative and promote a unified approach to the nation's history and civic responsibilities though the references provided do not explicitly support or refute this.
Step-by-step explanation:
The reflection of educational unity through national days is a concept that ties the collective educational experiences of a nation's citizens to the celebration and remembrance of significant historical events and figures. National days often serve as educational tools that reinforce a shared national narrative and values. they bring people together, regardless of their differences, promoting a unified approach to understanding and appreciating the nation's history and achievements. this can be observed in the way schools and educational institutions often play active roles during these days by organizing events, ceremonies and educational programs that emphasize the importance of national heritage and civic responsibilities.
However, the statement 'Explain how national days reflect educational unity. Is this statement justified?' doesn't seem to align with the provided references which are focused on statements regarding the economy, education spending, the theories of John Locke, the effects of the market revolution, and the legacy of the French and Indian War, rather than directly addressing how national days reflect educational unity. Therefore, it's not possible to determine the justification of the statement based on the provided information.